Home Tube DIY Asylum

Do It Yourself (DIY) paradise for tube and SET project builders.

RE: rolled off at 3800Hz

I can't blame you.

I didn't say it was brilliant, did I?

Transducers aren't linear, listening
rooms aren't, and our hearing certainly isn't.

But many audiophiles and their engineers
demand it anyhow.

Perhaps I could describe it this way:

Go out in your yard and take a look at
the weeds and flowers that are there.
Some smell very nice, some look pretty,
and some are so good, you can eat them.

Deer, rabbits, and other animals love
them. But take a look at them-- they're
all different-- each and every one.
There isn't any Linearity at all! NONE!
But, it IS a good flower-- etc.

Now, let's find a LINEAR flower. This is
easy. Just go over to Wal-Mart, Target, or
whatever, and get some of those artificial
plastic flowers. Those Dudes ARE linear.
Why, they're all made alike-- if they're the
same ones. If they're different ones, then THOSE
are all like each other.

The problem is that they don't smell like
a real, non-linear flower, and Deer certainly
won't eat them. But they ARE linear!

OK- audiophiles like linear. And engineers are
oh so happy to accommodate their tastes. Whatever
the market desires can be engineered by someone.

Movie theatres, however, must cater to
natural occurrences in nature and recording scenes.
They also have to cater to the non-linear human
hearing in their theatre patrons.
You can sell tickets when you involve the
theatre-goer in the picture, the sound equipment
had better disappear....

That is how we got our ALTECS, JBL's, Klangfilms,
even W.E. and RCA theatre transducers. They weren't
designed for audiophiles, they were designed to
address our non-linear world and interface with
our non-linear hearing.

Surface area. Coverage area. That's the Fun-Factor!

That's all there is to it-- get it to mimic
the real, non-linear world as best you can.

-Dennis-



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